/* Memory-access and commands for remote VxWorks processes, for GDB.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
+ Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
Contributed by Wind River Systems and Cygnus Support.
This file is part of GDB.
-GDB is free software; you can redistribute it and/or modify
+This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 1, or (at your option)
-any later version.
+the Free Software Foundation; either version 2 of the License, or
+(at your option) any later version.
-GDB is distributed in the hope that it will be useful,
+This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GDB; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with this program; if not, write to the Free Software
+Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include "defs.h"
-#include "param.h"
#include "frame.h"
#include "inferior.h"
#include "wait.h"
#include "gdbcore.h"
#include "command.h"
#include "symtab.h"
-#include "symfile.h" /* for struct complaint */
-
-#include <stdio.h>
-#include <string.h>
+#include "complaints.h"
+#include "gdbcmd.h"
+#include "bfd.h" /* Required by objfiles.h. */
+#include "symfile.h" /* Required by objfiles.h. */
+#include "objfiles.h"
+#include "gdb-stabs.h"
+
+#include "gdb_string.h"
#include <errno.h>
#include <signal.h>
#include <fcntl.h>
#include <sys/types.h>
-#include <sys/time.h>
#include <sys/socket.h>
+#define malloc bogon_malloc /* Sun claims "char *malloc()" not void * */
#define free bogon_free /* Sun claims "int free()" not void */
+#define realloc bogon_realloc /* Sun claims "char *realloc()", not void * */
#include <rpc/rpc.h>
+#undef malloc
#undef free
+#undef realloc
#include <sys/time.h> /* UTek's <rpc/rpc.h> doesn't #incl this */
#include <netdb.h>
-#include <ptrace.h>
-#include "xdr_ptrace.h"
-#include "xdr_ld.h"
-#include "xdr_rdb.h"
-#include "dbgRpcLib.h"
-
-/* get rid of value.h if possible */
-#include <value.h>
+#include "vx-share/ptrace.h"
+#include "vx-share/xdr_ptrace.h"
+#include "vx-share/xdr_ld.h"
+#include "vx-share/xdr_rdb.h"
+#include "vx-share/dbgRpcLib.h"
+
#include <symtab.h>
-
-extern value call_function_by_hand ();
+
+/* Maximum number of bytes to transfer in a single
+ PTRACE_{READ,WRITE}DATA request. */
+#define VX_MEMXFER_MAX 4096
+
+extern void vx_read_register ();
+extern void vx_write_register ();
extern void symbol_file_command ();
-extern void add_syms_addr_command ();
extern int stop_soon_quietly; /* for wait_for_inferior */
+static int net_step ();
static int net_ptrace_clnt_call (); /* Forward decl */
static enum clnt_stat net_clnt_call (); /* Forward decl */
extern struct target_ops vx_ops, vx_run_ops; /* Forward declaration */
/* Nonzero means target that is being debugged remotely has a floating
point processor. */
-static int target_has_fp;
+int target_has_fp;
/* Default error message when the network is forking up. */
/* Tell the VxWorks target system to download a file.
The load addresses of the text, data, and bss segments are
- stored in pTextAddr, pDataAddr, and *pBssAddr (respectively).
+ stored in *pTextAddr, *pDataAddr, and *pBssAddr (respectively).
Returns 0 for success, -1 for failure. */
static int
net_load (filename, pTextAddr, pDataAddr, pBssAddr)
- char *filename;
- CORE_ADDR *pTextAddr;
- CORE_ADDR *pDataAddr;
- CORE_ADDR *pBssAddr;
- {
- enum clnt_stat status;
- struct ldfile ldstruct;
- struct timeval load_timeout;
-
- bzero ((char *) &ldstruct, sizeof (ldstruct));
-
- /* We invoke clnt_call () here directly, instead of through
- net_clnt_call (), because we need to set a large timeout value.
- The load on the target side can take quite a while, easily
- more than 10 seconds. The user can kill this call by typing
- CTRL-C if there really is a problem with the load.
-
- Do not change the tv_sec value without checking -- select() imposes
- a limit of 10**8 on it for no good reason that I can see... */
-
- load_timeout.tv_sec = 99999999; /* A large number, effectively inf. */
- load_timeout.tv_usec = 0;
-
- status = clnt_call (pClient, VX_LOAD, xdr_wrapstring, &filename, xdr_ldfile,
- &ldstruct, load_timeout);
-
- if (status == RPC_SUCCESS)
- {
- if (*ldstruct.name == NULL) /* load failed on VxWorks side */
- return -1;
- *pTextAddr = ldstruct.txt_addr;
- *pDataAddr = ldstruct.data_addr;
- *pBssAddr = ldstruct.bss_addr;
- return 0;
- }
- else
- return -1;
- }
-
-/* returns 0 if successful, errno if RPC failed or VxWorks complains. */
-
-static int
-net_break (addr, procnum)
- int addr;
- u_long procnum;
- {
- enum clnt_stat status;
- int break_status;
- Rptrace ptrace_in; /* XXX This is stupid. It doesn't need to be a ptrace
- structure. How about something smaller? */
-
- bzero ((char *) &ptrace_in, sizeof (ptrace_in));
- break_status = 0;
+ char *filename;
+ CORE_ADDR *pTextAddr;
+ CORE_ADDR *pDataAddr;
+ CORE_ADDR *pBssAddr;
+{
+ enum clnt_stat status;
+ struct ldfile ldstruct;
+ struct timeval load_timeout;
- ptrace_in.addr = addr;
- ptrace_in.pid = inferior_pid;
+ memset ((char *) &ldstruct, '\0', sizeof (ldstruct));
- status = net_clnt_call (procnum, xdr_rptrace, &ptrace_in, xdr_int,
- &break_status);
+ /* We invoke clnt_call () here directly, instead of through
+ net_clnt_call (), because we need to set a large timeout value.
+ The load on the target side can take quite a while, easily
+ more than 10 seconds. The user can kill this call by typing
+ CTRL-C if there really is a problem with the load.
- if (status != RPC_SUCCESS)
- return errno;
+ Do not change the tv_sec value without checking -- select() imposes
+ a limit of 10**8 on it for no good reason that I can see... */
- if (break_status == -1)
- return ENOMEM;
- return break_status; /* probably (FIXME) zero */
- }
+ load_timeout.tv_sec = 99999999; /* A large number, effectively inf. */
+ load_timeout.tv_usec = 0;
-/* returns 0 if successful, errno otherwise */
+ status = clnt_call (pClient, VX_LOAD, xdr_wrapstring, &filename, xdr_ldfile,
+ &ldstruct, load_timeout);
-int
-vx_insert_breakpoint (addr)
- int addr;
+ if (status == RPC_SUCCESS)
{
- return net_break (addr, VX_BREAK_ADD);
+ if (*ldstruct.name == 0) /* load failed on VxWorks side */
+ return -1;
+ *pTextAddr = ldstruct.txt_addr;
+ *pDataAddr = ldstruct.data_addr;
+ *pBssAddr = ldstruct.bss_addr;
+ return 0;
}
+ else
+ return -1;
+}
-/* returns 0 if successful, errno otherwise */
-
-int
-vx_remove_breakpoint (addr)
- int addr;
- {
- return net_break (addr, VX_BREAK_DELETE);
- }
+/* returns 0 if successful, errno if RPC failed or VxWorks complains. */
-/* Call a function on the VxWorks target system.
- ARGS is a vector of values of arguments (NARGS of them).
- FUNCTION is a value, the function to be called.
- Returns a struct value * representing what the function returned.
- May fail to return, if a breakpoint or signal is hit
- during the execution of the function. */
-
-#ifdef FIXME
-/* FIXME, function calls are really fried. GO back to manual method. */
-value
-vx_call_function (function, nargs, args)
- value function;
- int nargs;
- value *args;
+static int
+net_break (addr, procnum)
+ int addr;
+ u_long procnum;
{
- register CORE_ADDR sp;
- register int i;
- CORE_ADDR start_sp;
- static REGISTER_TYPE dummy[] = CALL_DUMMY;
- REGISTER_TYPE dummy1[sizeof dummy / sizeof (REGISTER_TYPE)];
- CORE_ADDR old_sp;
- struct type *value_type;
- unsigned char struct_return;
- CORE_ADDR struct_addr;
- struct inferior_status inf_status;
- struct cleanup *old_chain;
- CORE_ADDR funaddr;
- int using_gcc;
-
- save_inferior_status (&inf_status, 1);
- old_chain = make_cleanup (restore_inferior_status, &inf_status);
-
- /* PUSH_DUMMY_FRAME is responsible for saving the inferior registers
- (and POP_FRAME for restoring them). (At least on most machines)
- they are saved on the stack in the inferior. */
- PUSH_DUMMY_FRAME;
-
- old_sp = sp = read_register (SP_REGNUM);
-
-#if 1 INNER_THAN 2 /* Stack grows down */
- sp -= sizeof dummy;
- start_sp = sp;
-#else /* Stack grows up */
- start_sp = sp;
- sp += sizeof dummy;
-#endif
-
- funaddr = find_function_addr (function, &value_type);
-
- {
- struct block *b = block_for_pc (funaddr);
- /* If compiled without -g, assume GCC. */
- using_gcc = b == NULL || BLOCK_GCC_COMPILED (b);
- }
-
- /* Are we returning a value using a structure return or a normal
- value return? */
-
- struct_return = using_struct_return (function, funaddr, value_type,
- using_gcc);
-
- /* Create a call sequence customized for this function
- and the number of arguments for it. */
- bcopy (dummy, dummy1, sizeof dummy);
- FIX_CALL_DUMMY (dummy1, start_sp, funaddr, nargs, args,
- value_type, using_gcc);
-
-#if CALL_DUMMY_LOCATION == ON_STACK
- write_memory (start_sp, dummy1, sizeof dummy);
-
-#else /* Not on stack. */
-#if CALL_DUMMY_LOCATION == BEFORE_TEXT_END
- /* Convex Unix prohibits executing in the stack segment. */
- /* Hope there is empty room at the top of the text segment. */
- {
- static checked = 0;
- if (!checked)
- for (start_sp = text_end - sizeof dummy; start_sp < text_end; ++start_sp)
- if (read_memory_integer (start_sp, 1) != 0)
- error ("text segment full -- no place to put call");
- checked = 1;
- sp = old_sp;
- start_sp = text_end - sizeof dummy;
- write_memory (start_sp, dummy1, sizeof dummy);
- }
-#else /* After text_end. */
- {
- int errcode;
- sp = old_sp;
- start_sp = text_end;
- errcode = target_write_memory (start_sp, dummy1, sizeof dummy);
- if (errcode != 0)
- error ("Cannot write text segment -- call_function failed");
- }
-#endif /* After text_end. */
-#endif /* Not on stack. */
-
-#ifdef STACK_ALIGN
- /* If stack grows down, we must leave a hole at the top. */
- {
- int len = 0;
-
- /* Reserve space for the return structure to be written on the
- stack, if necessary */
-
- if (struct_return)
- len += TYPE_LENGTH (value_type);
-
- for (i = nargs - 1; i >= 0; i--)
- len += TYPE_LENGTH (VALUE_TYPE (value_arg_coerce (args[i])));
-#ifdef CALL_DUMMY_STACK_ADJUST
- len += CALL_DUMMY_STACK_ADJUST;
-#endif
-#if 1 INNER_THAN 2
- sp -= STACK_ALIGN (len) - len;
-#else
- sp += STACK_ALIGN (len) - len;
-#endif
- }
-#endif /* STACK_ALIGN */
-
- /* Reserve space for the return structure to be written on the
- stack, if necessary */
-
- if (struct_return)
- {
-#if 1 INNER_THAN 2
- sp -= TYPE_LENGTH (value_type);
- struct_addr = sp;
-#else
- struct_addr = sp;
- sp += TYPE_LENGTH (value_type);
-#endif
- }
-
-#if defined (REG_STRUCT_HAS_ADDR)
- {
- /* This is a machine like the sparc, where we need to pass a pointer
- to the structure, not the structure itself. */
- if (REG_STRUCT_HAS_ADDR (using_gcc))
- for (i = nargs - 1; i >= 0; i--)
- if (TYPE_CODE (VALUE_TYPE (args[i])) == TYPE_CODE_STRUCT)
- {
- CORE_ADDR addr;
-#if !(1 INNER_THAN 2)
- /* The stack grows up, so the address of the thing we push
- is the stack pointer before we push it. */
- addr = sp;
-#endif
- /* Push the structure. */
- sp = value_push (sp, args[i]);
-#if 1 INNER_THAN 2
- /* The stack grows down, so the address of the thing we push
- is the stack pointer after we push it. */
- addr = sp;
-#endif
- /* The value we're going to pass is the address of the thing
- we just pushed. */
- args[i] = value_from_long (builtin_type_long, (LONGEST) addr);
- }
- }
-#endif /* REG_STRUCT_HAS_ADDR. */
-
-#ifdef PUSH_ARGUMENTS
- PUSH_ARGUMENTS(nargs, args, sp, struct_return, struct_addr);
-#else /* !PUSH_ARGUMENTS */
- for (i = nargs - 1; i >= 0; i--)
- sp = value_arg_push (sp, args[i]);
-#endif /* !PUSH_ARGUMENTS */
-
-#ifdef CALL_DUMMY_STACK_ADJUST
-#if 1 INNER_THAN 2
- sp -= CALL_DUMMY_STACK_ADJUST;
-#else
- sp += CALL_DUMMY_STACK_ADJUST;
-#endif
-#endif /* CALL_DUMMY_STACK_ADJUST */
-
- /* Store the address at which the structure is supposed to be
- written. Note that this (and the code which reserved the space
- above) assumes that gcc was used to compile this function. Since
- it doesn't cost us anything but space and if the function is pcc
- it will ignore this value, we will make that assumption.
-
- Also note that on some machines (like the sparc) pcc uses a
- convention like gcc's. */
-
- if (struct_return)
- STORE_STRUCT_RETURN (struct_addr, sp);
+ enum clnt_stat status;
+ int break_status;
+ Rptrace ptrace_in; /* XXX This is stupid. It doesn't need to be a ptrace
+ structure. How about something smaller? */
- /* Write the stack pointer. This is here because the statements above
- might fool with it. On SPARC, this write also stores the register
- window into the right place in the new stack frame, which otherwise
- wouldn't happen. (See write_inferior_registers in sparc-xdep.c.) */
- write_register (SP_REGNUM, sp);
+ memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in));
+ break_status = 0;
- /* Figure out the value returned by the function. */
- {
- char retbuf[REGISTER_BYTES];
+ ptrace_in.addr = addr;
+ ptrace_in.pid = inferior_pid;
- /* Execute the stack dummy routine, calling FUNCTION.
- When it is done, discard the empty frame
- after storing the contents of all regs into retbuf. */
- run_stack_dummy (start_sp + CALL_DUMMY_START_OFFSET, retbuf);
+ status = net_clnt_call (procnum, xdr_rptrace, &ptrace_in, xdr_int,
+ &break_status);
- do_cleanups (old_chain);
+ if (status != RPC_SUCCESS)
+ return errno;
- return value_being_returned (value_type, retbuf, struct_return);
- }
+ if (break_status == -1)
+ return ENOMEM;
+ return break_status; /* probably (FIXME) zero */
}
-/* should return a value of some sort */
-
-value
-vx_call_function (funcAddr, nargs, args, valueType)
- char *funcAddr;
- int nargs;
- value *args;
- struct type * valueType;
-{
- int i;
- func_call funcInfo;
- arg_value *argValue;
- enum clnt_stat status;
- register int len;
- arg_value funcReturn;
- value gdbValue;
-
- argValue = (arg_value *) xmalloc (nargs * sizeof (arg_value));
-
- bzero (argValue, nargs * sizeof (arg_value));
- bzero (&funcReturn, sizeof (funcReturn));
-
- for (i = nargs - 1; i >= 0; i--)
- {
- len = TYPE_LENGTH (VALUE_TYPE (args [i]));
- switch (TYPE_CODE (VALUE_TYPE (args[i])))
- {
- /* XXX put other types here. Where's CHAR, etc??? */
-
- case TYPE_CODE_FLT:
- argValue[i].type = T_FLOAT;
- break;
- case TYPE_CODE_INT:
- case TYPE_CODE_PTR:
- case TYPE_CODE_ENUM:
- case TYPE_CODE_FUNC:
- argValue[i].type = T_INT;
- break;
-
- case TYPE_CODE_UNDEF:
- case TYPE_CODE_ARRAY:
- case TYPE_CODE_STRUCT:
- case TYPE_CODE_UNION:
- case TYPE_CODE_VOID:
- case TYPE_CODE_SET:
- case TYPE_CODE_RANGE:
- case TYPE_CODE_PASCAL_ARRAY:
- case TYPE_CODE_MEMBER: /* C++ */
- case TYPE_CODE_METHOD: /* C++ */
- case TYPE_CODE_REF: /* C++ */
- default:
- error ("No corresponding VxWorks type for %d. CHECK IT OUT!!!\n",
- TYPE_CODE(VALUE_TYPE(args[i])));
- } /* switch */
- if (TYPE_CODE(VALUE_TYPE(args[i])) == TYPE_CODE_FUNC)
- argValue[i].arg_value_u.v_int = VALUE_ADDRESS(args[i]);
- else
- bcopy (VALUE_CONTENTS (args[i]), (char *) &argValue[i].arg_value_u,
- len);
- }
+/* returns 0 if successful, errno otherwise */
- /* XXX what should the type of this function addr be?
- * XXX Both in gdb and vxWorks
- */
- funcInfo.func_addr = (int) funcAddr;
- funcInfo.args.args_len = nargs;
- funcInfo.args.args_val = argValue;
+static int
+vx_insert_breakpoint (addr)
+ int addr;
+{
+ return net_break (addr, VX_BREAK_ADD);
+}
- status = net_clnt_call (VX_CALL_FUNC, xdr_func_call, (char *) &funcInfo,
- xdr_arg_value, &funcReturn);
+/* returns 0 if successful, errno otherwise */
- free ((char *) argValue);
+static int
+vx_remove_breakpoint (addr)
+ int addr;
+{
+ return net_break (addr, VX_BREAK_DELETE);
+}
- if (status == RPC_SUCCESS)
- {
- /* XXX this assumes that vxWorks ALWAYS returns an int, and that
- * XXX gdb isn't expecting anything more
- */
-
- /*******************
- if (funcReturn.type == T_UNKNOWN)
- return YYYXXX...;
- *******************/
- gdbValue = allocate_value (valueType);
- bcopy (&funcReturn.arg_value_u.v_int, VALUE_CONTENTS (gdbValue),
- sizeof (int));
- return gdbValue;
- }
- else
- error (rpcerr);
- }
-#endif /* FIXME */
-
/* Start an inferior process and sets inferior_pid to its pid.
EXEC_FILE is the file to run.
ALLARGS is a string containing the arguments to the program.
Returns process id. Errors reported with error().
On VxWorks, we ignore exec_file. */
-void
+static void
vx_create_inferior (exec_file, args, env)
char *exec_file;
char *args;
arg_array passArgs;
TASK_START taskStart;
- bzero ((char *) &passArgs, sizeof (passArgs));
- bzero ((char *) &taskStart, sizeof (taskStart));
+ memset ((char *) &passArgs, '\0', sizeof (passArgs));
+ memset ((char *) &taskStart, '\0', sizeof (taskStart));
/* parse arguments, put them in passArgs */
vx_running = savestring (passArgs.arg_array_val[0],
strlen (passArgs.arg_array_val[0]));
-#ifdef CREATE_INFERIOR_HOOK
- CREATE_INFERIOR_HOOK (pid);
-#endif
-
push_target (&vx_run_ops);
inferior_pid = taskStart.pid;
-#if defined (START_INFERIOR_HOOK)
- START_INFERIOR_HOOK ();
-#endif
-
/* We will get a trace trap after one instruction.
Insert breakpoints and continue. */
/* Install inferior's terminal modes. */
target_terminal_inferior ();
- /* remote_start(args); */
- /* trap_expected = 0; */
stop_soon_quietly = 1;
wait_for_inferior (); /* Get the task spawn event */
stop_soon_quietly = 0;
/* insert_step_breakpoint (); FIXME, do we need this? */
- proceed(-1, -1, 0);
+ proceed (-1, TARGET_SIGNAL_DEFAULT, 0);
}
/* Fill ARGSTRUCT in argc/argv form with the arguments from the
register int arg_index = 0;
register char *p0;
- bzero ((char *) arg_struct, sizeof (arg_array));
+ memset ((char *) arg_struct, '\0', sizeof (arg_array));
/* first count how many arguments there are */
to the debugged task.
Returns -1 if remote wait failed, task status otherwise. */
-int
+static int
net_wait (pEvent)
RDB_EVENT *pEvent;
{
int pid;
enum clnt_stat status;
- bzero ((char *) pEvent, sizeof (RDB_EVENT));
+ memset ((char *) pEvent, '\0', sizeof (RDB_EVENT));
pid = inferior_pid;
- status = net_clnt_call (PROCESS_WAIT, xdr_int, &pid, xdr_RDB_EVENT, pEvent);
+ status = net_clnt_call (PROCESS_WAIT, xdr_int, &pid, xdr_RDB_EVENT,
+ pEvent);
- return (status == RPC_SUCCESS)? pEvent->status: -1;
+ /* return (status == RPC_SUCCESS)? pEvent->status: -1; */
+ if (status == RPC_SUCCESS)
+ return ((pEvent->status) ? 1 : 0);
+ else if (status == RPC_TIMEDOUT)
+ return (1);
+ else
+ return (-1);
}
/* Suspend the remote task.
Returns -1 if suspend fails on target system, 0 otherwise. */
-int
+static int
net_quit ()
{
- int pid;
- int quit_status;
- enum clnt_stat status;
+ int pid;
+ int quit_status;
+ enum clnt_stat status;
- quit_status = 0;
+ quit_status = 0;
- /* don't let rdbTask suspend itself by passing a pid of 0 */
+ /* don't let rdbTask suspend itself by passing a pid of 0 */
- if ((pid = inferior_pid) == 0)
- return -1;
+ if ((pid = inferior_pid) == 0)
+ return -1;
- status = net_clnt_call (VX_TASK_SUSPEND, xdr_int, &pid, xdr_int,
- &quit_status);
+ status = net_clnt_call (VX_TASK_SUSPEND, xdr_int, &pid, xdr_int,
+ &quit_status);
- return (status == RPC_SUCCESS)? quit_status: -1;
+ return (status == RPC_SUCCESS)? quit_status: -1;
}
/* Read a register or registers from the remote system. */
-int
-vx_read_register (regno)
- int regno;
+void
+net_read_registers (reg_buf, len, procnum)
+ char *reg_buf;
+ int len;
+ u_long procnum;
{
int status;
Rptrace ptrace_in;
Ptrace_return ptrace_out;
- struct regs inferior_registers;
- struct fp_status inferior_fp_registers;
- extern char registers[];
+ C_bytes out_data;
+ char message[100];
- bzero ((char *) &ptrace_in, sizeof (ptrace_in));
- bzero ((char *) &ptrace_out, sizeof (ptrace_out));
+ memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in));
+ memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out));
- /* FIXME, eventually only get the ones we need. */
- registers_fetched ();
-
- ptrace_in.pid = inferior_pid;
- ptrace_out.info.more_data = (caddr_t) &inferior_registers;
- status = net_ptrace_clnt_call (PTRACE_GETREGS, &ptrace_in, &ptrace_out);
- if (status)
- error (rpcerr);
- if (ptrace_out.status == -1)
- {
- errno = ptrace_out.errno;
- return -1;
- }
-
-#ifdef I80960
+ /* Initialize RPC input argument structure. */
- bcopy ((char *) inferior_registers.r_lreg,
- ®isters[REGISTER_BYTE (R0_REGNUM)], 16 * sizeof (int));
- bcopy ((char *) inferior_registers.r_greg,
- ®isters[REGISTER_BYTE (G0_REGNUM)], 16 * sizeof (int));
-
- /* Don't assume that a location in registers[] is properly aligned. */
-
- bcopy ((char *) &inferior_registers.r_pcw,
- ®isters[REGISTER_BYTE (PCW_REGNUM)], sizeof (int));
- bcopy ((char *) &inferior_registers.r_acw,
- ®isters[REGISTER_BYTE (ACW_REGNUM)], sizeof (int));
- bcopy ((char *) &inferior_registers.r_lreg[2], /* r2 (RIP) -> IP */
- ®isters[REGISTER_BYTE (IP_REGNUM)], sizeof (int));
- bcopy ((char *) &inferior_registers.r_tcw,
- ®isters[REGISTER_BYTE (TCW_REGNUM)], sizeof (int));
+ ptrace_in.pid = inferior_pid;
+ ptrace_in.info.ttype = NOINFO;
- /* If the target has floating point registers, fetch them.
- Otherwise, zero the floating point register values in
- registers[] for good measure, even though we might not
- need to. */
+ /* Initialize RPC return value structure. */
- if (target_has_fp)
- {
- ptrace_in.pid = inferior_pid;
- ptrace_out.info.more_data = (caddr_t) &inferior_fp_registers;
- status = net_ptrace_clnt_call (PTRACE_GETFPREGS, &ptrace_in, &ptrace_out);
- if (status)
- error (rpcerr);
- if (ptrace_out.status == -1)
- {
- errno = ptrace_out.errno;
- return -1;
- }
-
- bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)],
- REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
- }
- else
- {
- bzero ((char *) ®isters[REGISTER_BYTE (FP0_REGNUM)],
- REGISTER_RAW_SIZE (FP0_REGNUM) * 4);
- }
+ out_data.bytes = reg_buf;
+ out_data.len = len;
+ ptrace_out.info.more_data = (caddr_t) &out_data;
-#else /* not 960, thus must be 68000: FIXME! */
+ /* Call RPC; take an error exit if appropriate. */
- bcopy (&inferior_registers, registers, 16 * 4);
- *(int *)®isters[REGISTER_BYTE (PS_REGNUM)] = inferior_registers.r_ps;
- *(int *)®isters[REGISTER_BYTE (PC_REGNUM)] = inferior_registers.r_pc;
-
- if (target_has_fp)
- {
- ptrace_in.pid = inferior_pid;
- ptrace_out.info.more_data = (caddr_t) &inferior_fp_registers;
- status = net_ptrace_clnt_call (PTRACE_GETFPREGS, &ptrace_in, &ptrace_out);
- if (status)
- error (rpcerr);
- if (ptrace_out.status == -1)
- {
- errno = ptrace_out.errno;
- return -1;
- }
-
- bcopy (&inferior_fp_registers, ®isters[REGISTER_BYTE (FP0_REGNUM)],
- sizeof inferior_fp_registers.fps_regs);
- bcopy (&inferior_fp_registers.fps_control,
- ®isters[REGISTER_BYTE (FPC_REGNUM)],
- sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs);
- }
- else
+ status = net_ptrace_clnt_call (procnum, &ptrace_in, &ptrace_out);
+ if (status)
+ error (rpcerr);
+ if (ptrace_out.status == -1)
{
- bzero (®isters[REGISTER_BYTE (FP0_REGNUM)],
- sizeof inferior_fp_registers.fps_regs);
- bzero (®isters[REGISTER_BYTE (FPC_REGNUM)],
- sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs);
+ errno = ptrace_out.errno;
+ sprintf (message, "reading %s registers", (procnum == PTRACE_GETREGS)
+ ? "general-purpose"
+ : "floating-point");
+ perror_with_name (message);
}
-#endif /* various architectures */
-
- return 0;
}
-/* Prepare to store registers. Since we will store all of them,
- read out their current values now. */
+/* Write register values to a VxWorks target. REG_BUF points to a buffer
+ containing the raw register values, LEN is the length of REG_BUF in
+ bytes, and PROCNUM is the RPC procedure number (PTRACE_SETREGS or
+ PTRACE_SETFPREGS). An error exit is taken if the RPC call fails or
+ if an error status is returned by the remote debug server. This is
+ a utility routine used by vx_write_register (). */
void
-vx_prepare_to_store ()
-{
- vx_read_register (-1);
-}
-
-
-/* Store our register values back into the inferior.
- If REGNO is -1, do this for all registers.
- Otherwise, REGNO specifies which register (so we can save time). */
- /* FIXME, look at REGNO to save time here */
-
-vx_write_register (regno)
- int regno;
+net_write_registers (reg_buf, len, procnum)
+ char *reg_buf;
+ int len;
+ u_long procnum;
{
- struct regs inferior_registers;
- struct fp_status inferior_fp_registers;
- extern char registers[];
int status;
Rptrace ptrace_in;
Ptrace_return ptrace_out;
+ C_bytes in_data;
+ char message[100];
- bzero ((char *) &ptrace_in, sizeof (ptrace_in));
- bzero ((char *) &ptrace_out, sizeof (ptrace_out));
-
-#ifdef I80960
-
- bcopy (®isters[REGISTER_BYTE (R0_REGNUM)],
- (char *) inferior_registers.r_lreg, 16 * sizeof (int));
- bcopy (®isters[REGISTER_BYTE (G0_REGNUM)],
- (char *) inferior_registers.r_greg, 16 * sizeof (int));
-
- /* Don't assume that a location in registers[] is properly aligned. */
+ memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in));
+ memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out));
- bcopy (®isters[REGISTER_BYTE (PCW_REGNUM)],
- (char *) &inferior_registers.r_pcw, sizeof (int));
- bcopy (®isters[REGISTER_BYTE (ACW_REGNUM)],
- (char *) &inferior_registers.r_acw, sizeof (int));
- bcopy (®isters[REGISTER_BYTE (TCW_REGNUM)],
- (char *) &inferior_registers.r_tcw, sizeof (int));
+ /* Initialize RPC input argument structure. */
-#else /* not 960 -- assume 68k -- FIXME */
-
- bcopy (registers, &inferior_registers, 16 * 4);
- inferior_registers.r_ps = *(int *)®isters[REGISTER_BYTE (PS_REGNUM)];
- inferior_registers.r_pc = *(int *)®isters[REGISTER_BYTE (PC_REGNUM)];
-
-#endif /* Different register sets */
+ in_data.bytes = reg_buf;
+ in_data.len = len;
ptrace_in.pid = inferior_pid;
- ptrace_in.info.ttype = REGS;
- ptrace_in.info.more_data = (caddr_t) &inferior_registers;
+ ptrace_in.info.ttype = DATA;
+ ptrace_in.info.more_data = (caddr_t) &in_data;
+
+ /* Call RPC; take an error exit if appropriate. */
- /* XXX change second param to be a proc number */
- status = net_ptrace_clnt_call (PTRACE_SETREGS, &ptrace_in, &ptrace_out);
+ status = net_ptrace_clnt_call (procnum, &ptrace_in, &ptrace_out);
if (status)
- error (rpcerr);
+ error (rpcerr);
if (ptrace_out.status == -1)
{
errno = ptrace_out.errno;
- return -1;
+ sprintf (message, "writing %s registers", (procnum == PTRACE_SETREGS)
+ ? "general-purpose"
+ : "floating-point");
+ perror_with_name (message);
}
+}
- /* Store floating point registers if the target has them. */
-
- if (target_has_fp)
- {
-#ifdef I80960
-
- bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
- sizeof inferior_fp_registers.fps_regs);
-
-#else /* not 960 -- assume 68k -- FIXME */
-
- bcopy (®isters[REGISTER_BYTE (FP0_REGNUM)], &inferior_fp_registers,
- sizeof inferior_fp_registers.fps_regs);
- bcopy (®isters[REGISTER_BYTE (FPC_REGNUM)],
- &inferior_fp_registers.fps_control,
- sizeof inferior_fp_registers - sizeof inferior_fp_registers.fps_regs);
-
-#endif /* Different register sets */
-
- ptrace_in.pid = inferior_pid;
- ptrace_in.info.ttype = FPREGS;
- ptrace_in.info.more_data = (caddr_t) &inferior_fp_registers;
+/* Prepare to store registers. Since we will store all of them,
+ read out their current values now. */
- status = net_ptrace_clnt_call (PTRACE_SETFPREGS, &ptrace_in, &ptrace_out);
- if (status)
- error (rpcerr);
- if (ptrace_out.status == -1)
- {
- errno = ptrace_out.errno;
- return -1;
- }
- }
- return 0;
+static void
+vx_prepare_to_store ()
+{
+ /* Fetch all registers, if any of them are not yet fetched. */
+ read_register_bytes (0, NULL, REGISTER_BYTES);
}
/* Copy LEN bytes to or from remote inferior's memory starting at MEMADDR
handle the current address but can handle one N bytes further, but
vxworks doesn't give us that information. */
-int
-vx_xfer_memory (memaddr, myaddr, len, write)
+static int
+vx_xfer_memory (memaddr, myaddr, len, write, target)
CORE_ADDR memaddr;
char *myaddr;
int len;
+ int write;
+ struct target_ops *target; /* ignored */
{
int status;
Rptrace ptrace_in;
Ptrace_return ptrace_out;
C_bytes data;
+ enum ptracereq request;
+ int nleft, nxfer;
- bzero ((char *) &ptrace_in, sizeof (ptrace_in));
- bzero ((char *) &ptrace_out, sizeof (ptrace_out));
+ memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in));
+ memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out));
ptrace_in.pid = inferior_pid; /* XXX pid unnecessary for READDATA */
ptrace_in.addr = (int) memaddr; /* Where from */
data.bytes = (caddr_t) myaddr; /* Where from */
data.len = len; /* How many bytes (again, for XDR) */
-
- /* XXX change second param to be a proc number */
- status = net_ptrace_clnt_call (PTRACE_WRITEDATA, &ptrace_in, &ptrace_out);
+ request = PTRACE_WRITEDATA;
}
else
{
ptrace_out.info.more_data = (caddr_t) &data;
- data.bytes = myaddr; /* Where to */
- data.len = len; /* How many (again, for XDR) */
-
- /* XXX change second param to be a proc number */
- status = net_ptrace_clnt_call (PTRACE_READDATA, &ptrace_in, &ptrace_out);
+ request = PTRACE_READDATA;
}
+ /* Loop until the entire request has been satisfied, transferring
+ at most VX_MEMXFER_MAX bytes per iteration. Break from the loop
+ if an error status is returned by the remote debug server. */
- if (status)
- error (rpcerr);
- if (ptrace_out.status == -1)
+ nleft = len;
+ status = 0;
+
+ while (nleft > 0 && status == 0)
{
- return 0; /* No bytes moved */
+ nxfer = min (nleft, VX_MEMXFER_MAX);
+
+ ptrace_in.addr = (int) memaddr;
+ ptrace_in.data = nxfer;
+ data.bytes = (caddr_t) myaddr;
+ data.len = nxfer;
+
+ /* Request a block from the remote debug server; if RPC fails,
+ report an error and return to debugger command level. */
+
+ if (net_ptrace_clnt_call (request, &ptrace_in, &ptrace_out))
+ error (rpcerr);
+
+ status = ptrace_out.status;
+ if (status == 0)
+ {
+ memaddr += nxfer;
+ myaddr += nxfer;
+ nleft -= nxfer;
+ }
+ else
+ {
+ /* A target-side error has ocurred. Set errno to the error
+ code chosen by the target so that a later perror () will
+ say something meaningful. */
+
+ errno = ptrace_out.errno;
+ }
}
- return len; /* Moved *all* the bytes */
+
+ /* Return the number of bytes transferred. */
+
+ return (len - nleft);
}
-void
+static void
vx_files_info ()
{
- printf ("\tAttached to host `%s'", vx_host);
- printf (", which has %sfloating point", target_has_fp? "": "no ");
- printf (".\n");
+ printf_unfiltered ("\tAttached to host `%s'", vx_host);
+ printf_unfiltered (", which has %sfloating point", target_has_fp? "": "no ");
+ printf_unfiltered (".\n");
}
-void
+static void
vx_run_files_info ()
{
- printf ("\tRunning %s VxWorks process 0x%x",
- vx_running? "child": "attached",
- inferior_pid);
+ printf_unfiltered ("\tRunning %s VxWorks process %s",
+ vx_running ? "child" : "attached",
+ local_hex_string (inferior_pid));
if (vx_running)
- printf (", function `%s'", vx_running);
- printf(".\n");
+ printf_unfiltered (", function `%s'", vx_running);
+ printf_unfiltered(".\n");
}
-void
-vx_resume (step, siggnal)
+static void
+vx_resume (pid, step, siggnal)
+ int pid;
int step;
- int siggnal;
+ enum target_signal siggnal;
{
int status;
Rptrace ptrace_in;
Ptrace_return ptrace_out;
+ CORE_ADDR cont_addr;
+
+ if (pid == -1)
+ pid = inferior_pid;
if (siggnal != 0 && siggnal != stop_signal)
error ("Cannot send signals to VxWorks processes");
- bzero ((char *) &ptrace_in, sizeof (ptrace_in));
- bzero ((char *) &ptrace_out, sizeof (ptrace_out));
+ /* Set CONT_ADDR to the address at which we are continuing,
+ or to 1 if we are continuing from where the program stopped.
+ This conforms to traditional ptrace () usage, but at the same
+ time has special meaning for the VxWorks remote debug server.
+ If the address is not 1, the server knows that the target
+ program is jumping to a new address, which requires special
+ handling if there is a breakpoint at the new address. */
- ptrace_in.pid = inferior_pid;
- ptrace_in.addr = 1; /* Target side insists on this, or it panics. */
+ cont_addr = read_register (PC_REGNUM);
+ if (cont_addr == stop_pc)
+ cont_addr = 1;
+
+ memset ((char *) &ptrace_in, '\0', sizeof (ptrace_in));
+ memset ((char *) &ptrace_out, '\0', sizeof (ptrace_out));
+
+ ptrace_in.pid = pid;
+ ptrace_in.addr = cont_addr; /* Target side insists on this, or it panics. */
+
+ if (step)
+ status = net_step();
+ else
+ status = net_ptrace_clnt_call (PTRACE_CONT, &ptrace_in, &ptrace_out);
- /* XXX change second param to be a proc number */
- status = net_ptrace_clnt_call (step? PTRACE_SINGLESTEP: PTRACE_CONT,
- &ptrace_in, &ptrace_out);
if (status)
- error (rpcerr);
+ error (rpcerr);
if (ptrace_out.status == -1)
{
errno = ptrace_out.errno;
}
}
-void
+static void
vx_mourn_inferior ()
{
pop_target (); /* Pop back to no-child state */
}
\f
+static void vx_add_symbols PARAMS ((char *, int, CORE_ADDR, CORE_ADDR,
+ CORE_ADDR));
+
+struct find_sect_args {
+ CORE_ADDR text_start;
+ CORE_ADDR data_start;
+ CORE_ADDR bss_start;
+};
+
+static void find_sect PARAMS ((bfd *, asection *, void *));
+
+static void
+find_sect (abfd, sect, obj)
+ bfd *abfd;
+ asection *sect;
+ PTR obj;
+{
+ struct find_sect_args *args = (struct find_sect_args *)obj;
+
+ if (bfd_get_section_flags (abfd, sect) & (SEC_CODE & SEC_READONLY))
+ args->text_start = bfd_get_section_vma (abfd, sect);
+ else if (bfd_get_section_flags (abfd, sect) & SEC_ALLOC)
+ {
+ if (bfd_get_section_flags (abfd, sect) & SEC_LOAD)
+ {
+ /* Exclude .ctor and .dtor sections which have SEC_CODE set but not
+ SEC_DATA. */
+ if (bfd_get_section_flags (abfd, sect) & SEC_DATA)
+ args->data_start = bfd_get_section_vma (abfd, sect);
+ }
+ else
+ args->bss_start = bfd_get_section_vma (abfd, sect);
+ }
+}
+
+static void
+vx_add_symbols (name, from_tty, text_addr, data_addr, bss_addr)
+ char *name;
+ int from_tty;
+ CORE_ADDR text_addr;
+ CORE_ADDR data_addr;
+ CORE_ADDR bss_addr;
+{
+ struct section_offsets *offs;
+ struct objfile *objfile;
+ struct find_sect_args ss;
+
+ /* It might be nice to suppress the breakpoint_re_set which happens here
+ because we are going to do one again after the objfile_relocate. */
+ objfile = symbol_file_add (name, from_tty, 0, 0, 0, 0);
+
+ /* This is a (slightly cheesy) way of superceding the old symbols. A less
+ cheesy way would be to find the objfile with the same name and
+ free_objfile it. */
+ objfile_to_front (objfile);
+
+ offs = (struct section_offsets *)
+ alloca (sizeof (struct section_offsets)
+ + objfile->num_sections * sizeof (offs->offsets));
+ memcpy (offs, objfile->section_offsets,
+ sizeof (struct section_offsets)
+ + objfile->num_sections * sizeof (offs->offsets));
+
+ ss.text_start = 0;
+ ss.data_start = 0;
+ ss.bss_start = 0;
+ bfd_map_over_sections (objfile->obfd, find_sect, &ss);
+
+ /* Both COFF and b.out frontends use these SECT_OFF_* values. */
+ ANOFFSET (offs, SECT_OFF_TEXT) = text_addr - ss.text_start;
+ ANOFFSET (offs, SECT_OFF_DATA) = data_addr - ss.data_start;
+ ANOFFSET (offs, SECT_OFF_BSS) = bss_addr - ss.bss_start;
+ objfile_relocate (objfile, offs);
+
+ /* Need to do this *after* things are relocated. */
+ breakpoint_re_set ();
+}
+
/* This function allows the addition of incrementally linked object files. */
-void
+static void
vx_load_command (arg_string, from_tty)
- char* arg_string;
+ char *arg_string;
int from_tty;
{
CORE_ADDR text_addr;
CORE_ADDR data_addr;
CORE_ADDR bss_addr;
-
+
if (arg_string == 0)
error ("The load command takes a file name");
dont_repeat ();
+ /* Refuse to load the module if a debugged task is running. Doing so
+ can have a number of unpleasant consequences to the running task. */
+
+ if (inferior_pid != 0 && target_has_execution)
+ {
+ if (query ("You may not load a module while the target task is running.\n\
+Kill the target task? "))
+ target_kill ();
+ else
+ error ("Load cancelled.");
+ }
+
QUIT;
immediate_quit++;
if (net_load (arg_string, &text_addr, &data_addr, &bss_addr) == -1)
error ("Load failed on target machine");
immediate_quit--;
- /* FIXME, for now we ignore data_addr and bss_addr. */
- symbol_file_add (arg_string, from_tty, text_addr, 0);
+ vx_add_symbols (arg_string, from_tty, text_addr, data_addr, bss_addr);
+
+ /* Getting new symbols may change our opinion about what is
+ frameless. */
+ reinit_frame_cache ();
}
-#ifdef FIXME /* Not ready for prime time */
/* Single step the target program at the source or machine level.
Takes an error exit if rpc fails.
Returns -1 if remote single-step operation fails, else 0. */
else
error (rpcerr);
}
-#endif
/* Emulate ptrace using RPC calls to the VxWorks target system.
Returns nonzero (-1) if RPC status to VxWorks is bad, 0 otherwise. */
NULL, memory for the buffer will be allocated by XDR.
Returns -1 if rpc failed, 0 otherwise. */
-int
+static int
net_get_boot_file (pBootFile)
char **pBootFile;
{
There's no way to check if the returned loadTable is correct.
VxWorks doesn't check it. */
-int
+static int
net_get_symbols (pLoadTable)
ldtabl *pLoadTable; /* return pointer to ldtabl here */
{
enum clnt_stat status;
- bzero ((char *) pLoadTable, sizeof (struct ldtabl));
+ memset ((char *) pLoadTable, '\0', sizeof (struct ldtabl));
status = net_clnt_call (VX_STATE_INQ, xdr_void, 0, xdr_ldtabl, pLoadTable);
return (status == RPC_SUCCESS) ? 0 : -1;
struct complaint cant_contact_target =
{"Lost contact with VxWorks target", 0, 0};
-int
+static int
vx_lookup_symbol (name, pAddr)
char *name; /* symbol name */
CORE_ADDR *pAddr;
SYMBOL_ADDR symbolAddr;
*pAddr = 0;
- bzero ((char *) &symbolAddr, sizeof (symbolAddr));
+ memset ((char *) &symbolAddr, '\0', sizeof (symbolAddr));
status = net_clnt_call (VX_SYMBOL_INQ, xdr_wrapstring, &name,
xdr_SYMBOL_ADDR, &symbolAddr);
- if (status != RPC_SUCCESS) {
- complain (&cant_contact_target, 0);
+ if (status != RPC_SUCCESS)
+ {
+ complain (&cant_contact_target);
return -1;
- }
+ }
*pAddr = symbolAddr.addr;
return symbolAddr.status;
Returns 1 if target has floating point processor, 0 otherwise.
Calls error() if rpc fails. */
-int
+static int
net_check_for_fp ()
{
enum clnt_stat status;
status = net_clnt_call (VX_FP_INQUIRE, xdr_void, 0, xdr_bool, &fp);
if (status != RPC_SUCCESS)
- error (rpcerr);
+ error (rpcerr);
return (int) fp;
}
/* Establish an RPC connection with the VxWorks target system.
Calls error () if unable to establish connection. */
-void
+static void
net_connect (host)
char *host;
{
struct sockaddr_in destAddr;
struct hostent *destHost;
+ unsigned long addr;
- /* get the internet address for the given host */
+ /* Get the internet address for the given host. Allow a numeric
+ IP address or a hostname. */
- if ((destHost = (struct hostent *) gethostbyname (host)) == NULL)
- error ("Invalid hostname. Couldn't find remote host address.");
+ addr = inet_addr (host);
+ if (addr == -1)
+ {
+ destHost = (struct hostent *) gethostbyname (host);
+ if (destHost == NULL)
+ /* FIXME: Probably should include hostname here in quotes.
+ For example if the user types "target vxworks vx960 " it should
+ say "Invalid host `vx960 '." not just "Invalid hostname". */
+ error ("Invalid hostname. Couldn't find remote host address.");
+ addr = * (unsigned long *) destHost->h_addr;
+ }
- bzero (&destAddr, sizeof (destAddr));
+ memset (&destAddr, '\0', sizeof (destAddr));
- destAddr.sin_addr.s_addr = * (u_long *) destHost->h_addr;
+ destAddr.sin_addr.s_addr = addr;
destAddr.sin_family = AF_INET;
destAddr.sin_port = 0; /* set to actual port that remote
ptrace is listening on. */
ptraceSock = RPC_ANYSOCK;
pClient = clnttcp_create (&destAddr, RDBPROG, RDBVERS, &ptraceSock, 0, 0);
- /* FIXME, here is where we deal with different version numbers of the proto */
-
+ /* FIXME, here is where we deal with different version numbers of the
+ proto */
+
if (pClient == NULL)
{
clnt_pcreateerror ("\tnet_connect");
select_timeout.tv_sec = 0;
select_timeout.tv_usec = ms * 1000;
- status = select (0, (fd_set *) 0, (fd_set *) 0, (fd_set *) 0, &select_timeout);
+ status = select (0, (fd_set *) 0, (fd_set *) 0, (fd_set *) 0,
+ &select_timeout);
if (status < 0 && errno != EINTR)
perror_with_name ("select");
}
-/* Wait for control to return from inferior to debugger.
- If inferior gets a signal, we may decide to start it up again
- instead of returning. That is why there is a loop in this function.
- When this function actually returns it means the inferior
- should be left stopped and GDB should read more commands. */
-
-/* For network debugging with VxWorks.
- * VxWorks knows when tasks hit breakpoints, receive signals, exit, etc,
- * so vx_wait() receives this information directly from
- * VxWorks instead of trying to figure out what happenned via a wait() call.
- */
-
static int
-vx_wait (status)
- int *status;
+vx_wait (pid_to_wait_for, status)
+ int pid_to_wait_for;
+ struct target_waitstatus *status;
{
register int pid;
- WAITTYPE w;
RDB_EVENT rdbEvent;
int quit_failed;
sleep_ms (200); /* FIXME Don't kill the network too badly */
}
else if (pid != inferior_pid)
- fatal ("Bad pid for debugged task: 0x%x\n", pid);
+ fatal ("Bad pid for debugged task: %s\n",
+ local_hex_string((unsigned long) pid));
} while (pid == 0);
- /* FIXME, eventually do more then SIGTRAP on everything... */
+ /* The mostly likely kind. */
+ status->kind = TARGET_WAITKIND_STOPPED;
+
switch (rdbEvent.eventType)
{
case EVENT_EXIT:
- WSETEXIT (w, 0);
+ status->kind = TARGET_WAITKIND_EXITED;
/* FIXME is it possible to distinguish between a
- XXX normal vs abnormal exit in VxWorks? */
+ normal vs abnormal exit in VxWorks? */
+ status->value.integer = 0;
break;
- case EVENT_START: /* Task was just started. */
- WSETSTOP (w, SIGTRAP);
+ case EVENT_START:
+ /* Task was just started. */
+ status->value.sig = TARGET_SIGNAL_TRAP;
break;
case EVENT_STOP:
- WSETSTOP (w, SIGTRAP);
+ status->value.sig = TARGET_SIGNAL_TRAP;
/* XXX was it stopped by a signal? act accordingly */
break;
case EVENT_BREAK: /* Breakpoint was hit. */
- WSETSTOP (w, SIGTRAP);
+ status->value.sig = TARGET_SIGNAL_TRAP;
break;
case EVENT_SUSPEND: /* Task was suspended, probably by ^C. */
- WSETSTOP (w, SIGINT);
+ status->value.sig = TARGET_SIGNAL_INT;
break;
case EVENT_BUS_ERR: /* Task made evil nasty reference. */
- WSETSTOP (w, SIGBUS);
+ status->value.sig = TARGET_SIGNAL_BUS;
break;
case EVENT_ZERO_DIV: /* Division by zero */
- WSETSTOP (w, SIGFPE); /* Like Unix, call it a float exception. */
+ status->value.sig = TARGET_SIGNAL_FPE;
+ break;
case EVENT_SIGNAL:
- /* The target is not running Unix, and its
- faults/traces do not map nicely into Unix signals.
- Make sure they do not get confused with Unix signals
- by numbering them with values higher than the highest
- legal Unix signal. code in the arch-dependent PRINT_RANDOM_SIGNAL
- routine will interpret the value for wait_for_inferior. */
- WSETSTOP (w, rdbEvent.sigType + NSIG);
+#ifdef I80960
+ status->value.sig = i960_fault_to_signal (rdbEvent.sigType);
+#else
+ /* Back in the old days, before enum target_signal, this code used
+ to add NSIG to the signal number and claim that PRINT_RANDOM_SIGNAL
+ would take care of it. But PRINT_RANDOM_SIGNAL has never been
+ defined except on the i960, so I don't really know what we are
+ supposed to do on other architectures. */
+ status->value.sig = TARGET_SIGNAL_UNKNOWN;
+#endif
break;
} /* switch */
- *status = *(int *)&w; /* Grumble union wait crap Grumble */
return pid;
}
\f
static int
symbol_stub (arg)
- int arg;
+ char *arg;
{
- char *bootFile = (char *)arg;
- symbol_file_command (bootFile, 0);
+ symbol_file_command (arg, 0);
return 1;
}
static int
add_symbol_stub (arg)
- int arg;
+ char *arg;
{
struct ldfile *pLoadFile = (struct ldfile *)arg;
- printf("\t%s: ", pLoadFile->name);
- symbol_file_add (pLoadFile->name, 0, pLoadFile->txt_addr, 0);
- printf ("ok\n");
+ printf_unfiltered("\t%s: ", pLoadFile->name);
+ vx_add_symbols (pLoadFile->name, 0, pLoadFile->txt_addr,
+ pLoadFile->data_addr, pLoadFile->bss_addr);
+ printf_unfiltered ("ok\n");
return 1;
}
/* Target command for VxWorks target systems.
struct ldfile *pLoadFile;
int i;
extern CLIENT *pClient;
+ int symbols_added = 0;
if (!args)
error_no_arg ("target machine name");
+ target_preopen (from_tty);
+
unpush_target (&vx_ops);
- printf ("Attaching remote machine across net...\n");
- fflush (stdout);
+ printf_unfiltered ("Attaching remote machine across net...\n");
+ gdb_flush (gdb_stdout);
/* Allow the user to kill the connect attempt by typing ^C.
Wait until the call to target_has_fp () completes before
bootFile = NULL;
if (!net_get_boot_file (&bootFile))
{
- if (*bootFile) {
- printf_filtered ("\t%s: ", bootFile);
- if (catch_errors (symbol_stub, (int)bootFile,
- "Error reading symbols from boot file"))
- puts_filtered ("ok\n");
- } else if (from_tty)
- printf ("VxWorks kernel symbols not loaded.\n");
+ if (*bootFile)
+ {
+ printf_filtered ("\t%s: ", bootFile);
+ /* This assumes that the kernel is never relocated. Hope that is an
+ accurate assumption. */
+ if (catch_errors
+ (symbol_stub,
+ bootFile,
+ "Error while reading symbols from boot file:\n",
+ RETURN_MASK_ALL))
+ puts_filtered ("ok\n");
+ }
+ else if (from_tty)
+ printf_unfiltered ("VxWorks kernel symbols not loaded.\n");
}
else
error ("Can't retrieve boot file name from target machine.");
do_cleanups (old_chain);
}
#else
- /* Botches, FIXME:
- (1) Searches the PATH, not the source path.
- (2) data and bss are assumed to be at the usual offsets from text. */
- catch_errors (add_symbol_stub, (int)pLoadFile, (char *)0);
+ /* FIXME: Is there something better to search than the PATH? (probably
+ not the source path, since source might be in different directories
+ than objects. */
+
+ if (catch_errors (add_symbol_stub, (char *)pLoadFile, (char *)0,
+ RETURN_MASK_ALL))
+ symbols_added = 1;
#endif
}
printf_filtered ("Done.\n");
clnt_freeres (pClient, xdr_ldtabl, &loadTable);
+
+ /* Getting new symbols may change our opinion about what is
+ frameless. */
+ if (symbols_added)
+ reinit_frame_cache ();
}
\f
-/* attach_command --
- takes a task started up outside of gdb and ``attaches'' to it.
+/* Takes a task started up outside of gdb and ``attaches'' to it.
This stops it cold in its tracks and allows us to start tracing it. */
static void
char *args;
int from_tty;
{
- int pid;
+ unsigned long pid;
char *cptr = 0;
Rptrace ptrace_in;
Ptrace_return ptrace_out;
int status;
- dont_repeat();
-
if (!args)
error_no_arg ("process-id to attach");
- pid = strtol (args, &cptr, 0);
+ pid = strtoul (args, &cptr, 0);
if ((cptr == args) || (*cptr != '\0'))
error ("Invalid process-id -- give a single number in decimal or 0xhex");
if (from_tty)
- printf ("Attaching pid 0x%x.\n", pid);
+ printf_unfiltered ("Attaching pid %s.\n",
+ local_hex_string((unsigned long) pid));
- bzero ((char *)&ptrace_in, sizeof (ptrace_in));
- bzero ((char *)&ptrace_out, sizeof (ptrace_out));
+ memset ((char *)&ptrace_in, '\0', sizeof (ptrace_in));
+ memset ((char *)&ptrace_out, '\0', sizeof (ptrace_out));
ptrace_in.pid = pid;
status = net_ptrace_clnt_call (PTRACE_ATTACH, &ptrace_in, &ptrace_out);
/* It worked... */
push_target (&vx_run_ops);
+ /* The unsigned long pid will get turned into a signed int here,
+ but it doesn't seem to matter. inferior_pid must be signed
+ in order for other parts of GDB to work correctly. */
inferior_pid = pid;
vx_running = 0;
-
#if defined (START_INFERIOR_HOOK)
START_INFERIOR_HOOK ();
#endif
/* Set up the "saved terminal modes" of the inferior
based on what modes we are starting it with. */
+
target_terminal_init ();
/* Install inferior's terminal modes. */
+
target_terminal_inferior ();
/* We will get a task spawn event immediately. */
+
init_wait_for_inferior ();
clear_proceed_status ();
stop_soon_quietly = 1;
error ("Argument given to VxWorks \"detach\".");
if (from_tty)
- printf ("Detaching pid 0x%x.\n", inferior_pid);
+ printf_unfiltered ("Detaching pid %s.\n",
+ local_hex_string((unsigned long) inferior_pid));
if (args) /* FIXME, should be possible to leave suspended */
signal = atoi (args);
- bzero ((char *)&ptrace_in, sizeof (ptrace_in));
- bzero ((char *)&ptrace_out, sizeof (ptrace_out));
+ memset ((char *)&ptrace_in, '\0', sizeof (ptrace_in));
+ memset ((char *)&ptrace_out, '\0', sizeof (ptrace_out));
ptrace_in.pid = inferior_pid;
status = net_ptrace_clnt_call (PTRACE_DETACH, &ptrace_in, &ptrace_out);
/* vx_kill -- takes a running task and wipes it out. */
static void
-vx_kill (args, from_tty)
- char *args;
- int from_tty;
+vx_kill ()
{
Rptrace ptrace_in;
Ptrace_return ptrace_out;
int status;
- if (args)
- error ("Argument given to VxWorks \"kill\".");
-
- if (from_tty)
- printf ("Killing pid 0x%x.\n", inferior_pid);
+ printf_unfiltered ("Killing pid %s.\n", local_hex_string((unsigned long) inferior_pid));
- bzero ((char *)&ptrace_in, sizeof (ptrace_in));
- bzero ((char *)&ptrace_out, sizeof (ptrace_out));
+ memset ((char *)&ptrace_in, '\0', sizeof (ptrace_in));
+ memset ((char *)&ptrace_out, '\0', sizeof (ptrace_out));
ptrace_in.pid = inferior_pid;
status = net_ptrace_clnt_call (PTRACE_KILL, &ptrace_in, &ptrace_out);
if (status == -1)
- error (rpcerr);
- if (ptrace_out.status == -1)
+ warning (rpcerr);
+ else if (ptrace_out.status == -1)
{
errno = ptrace_out.errno;
perror_with_name ("Killing VxWorks process");
}
- /* If it gives good status, the process is *gone*, no events remain. */
+ /* If it gives good status, the process is *gone*, no events remain.
+ If the kill failed, assume the process is gone anyhow. */
inferior_pid = 0;
pop_target (); /* go back to non-executing VxWorks connection */
}
/* Clean up from the VxWorks process target as it goes away. */
-void
+static void
vx_proc_close (quitting)
int quitting;
{
vx_running = 0;
}
\f
-/* Cross-net conversion of floats to and from extended form.
- (This is needed because different target machines have different
- extended floating point formats.) */
-
-/* Convert from an extended float to a double.
-
- The extended float is stored as raw data pointed to by FROM.
- Return the converted value as raw data in the double pointed to by TO.
-*/
-
-static void
-vx_convert_to_virtual (regno, from, to)
- int regno;
- char *from;
- char *to;
-{
- enum clnt_stat status;
-
- if (REGISTER_CONVERTIBLE (regno))
- {
- if (!target_has_fp) {
- *(double *)to = 0.0; /* Skip the trouble if no float anyway */
- return;
- }
-
- status = net_clnt_call (VX_CONV_FROM_68881, xdr_ext_fp, from,
- xdr_double, to);
-
- if (status == RPC_SUCCESS)
- return;
- else
- error (rpcerr);
- }
- else
- bcopy (from, to, REGISTER_VIRTUAL_SIZE (regno));
-}
-
-
-/* The converse: convert from a double to an extended float.
-
- The double is stored as raw data pointed to by FROM.
- Return the converted value as raw data in the extended
- float pointed to by TO.
-*/
-
-static void
-vx_convert_from_virtual (regno, from, to)
- int regno;
- char *from;
- char *to;
-{
- enum clnt_stat status;
-
- if (REGISTER_CONVERTIBLE (regno))
- {
- if (!target_has_fp) {
- bzero (to, REGISTER_RAW_SIZE (FP0_REGNUM)); /* Shrug */
- return;
- }
-
- status = net_clnt_call (VX_CONV_TO_68881, xdr_double, from,
- xdr_ext_fp, to);
- if (status == RPC_SUCCESS)
- return;
- else
- error (rpcerr);
- }
- else
- bcopy (from, to, REGISTER_VIRTUAL_SIZE (regno));
-}
-\f
/* Make an RPC call to the VxWorks target.
Returns RPC status. */
/* Clean up before losing control. */
-void
+static void
vx_close (quitting)
int quitting;
{
vx_host = 0;
}
+/* A vxprocess target should be started via "run" not "target". */
+/*ARGSUSED*/
+static void
+vx_proc_open (name, from_tty)
+ char *name;
+ int from_tty;
+{
+ error ("Use the \"run\" command to start a VxWorks process.");
+}
/* Target ops structure for accessing memory and such over the net */
struct target_ops vx_ops = {
- "vxworks", "VxWorks target memory via RPC over TCP/IP",
- vx_open, vx_close, vx_attach, 0, /* vx_detach, */
- 0, 0, /* resume, wait */
- 0, 0, /* read_reg, write_reg */
- 0, vx_convert_to_virtual, vx_convert_from_virtual, /* prep_to_store, */
- vx_xfer_memory, vx_files_info,
- 0, 0, /* insert_breakpoint, remove_breakpoint */
- 0, 0, 0, 0, 0, /* terminal stuff */
- 0, /* vx_kill, */
- vx_load_command, add_syms_addr_command,
- 0, /* call_function */
- vx_lookup_symbol,
- vx_create_inferior, 0, /* mourn_inferior */
- core_stratum, 0, /* next */
- 1, 1, 0, 0, 0, /* all mem, mem, stack, regs, exec */
- OPS_MAGIC, /* Always the last thing */
+ "vxworks", "VxWorks target memory via RPC over TCP/IP",
+ "Use VxWorks target memory. \n\
+Specify the name of the machine to connect to.",
+ vx_open, vx_close, vx_attach, 0, /* vx_detach, */
+ 0, 0, /* resume, wait */
+ 0, 0, /* read_reg, write_reg */
+ 0, /* prep_to_store, */
+ vx_xfer_memory, vx_files_info,
+ 0, 0, /* insert_breakpoint, remove_breakpoint */
+ 0, 0, 0, 0, 0, /* terminal stuff */
+ 0, /* vx_kill, */
+ vx_load_command,
+ vx_lookup_symbol,
+ vx_create_inferior, 0, /* mourn_inferior */
+ 0, /* can_run */
+ 0, /* notice_signals */
+ 0, /* thread_alive */
+ 0, /* to_stop */
+ core_stratum, 0, /* next */
+ 1, 1, 0, 0, 0, /* all mem, mem, stack, regs, exec */
+ 0, 0, /* Section pointers */
+ OPS_MAGIC, /* Always the last thing */
};
/* Target ops structure for accessing VxWorks child processes over the net */
struct target_ops vx_run_ops = {
- "vxprocess", "VxWorks process",
- vx_open, vx_proc_close, 0, vx_detach, /* vx_attach */
- vx_resume, vx_wait,
- vx_read_register, vx_write_register,
- vx_prepare_to_store, vx_convert_to_virtual, vx_convert_from_virtual,
- vx_xfer_memory, vx_run_files_info,
- vx_insert_breakpoint, vx_remove_breakpoint,
- 0, 0, 0, 0, 0, /* terminal stuff */
- vx_kill,
- vx_load_command, add_syms_addr_command,
- call_function_by_hand, /* FIXME, calling fns is maybe botched? */
- vx_lookup_symbol,
- 0, vx_mourn_inferior,
- process_stratum, 0, /* next */
- 0, 1, 1, 1, 1, /* all mem, mem, stack, regs, exec */
- /* all_mem is off to avoid spurious msg in "i files" */
- OPS_MAGIC, /* Always the last thing */
+ "vxprocess", "VxWorks process",
+ "VxWorks process, started by the \"run\" command.",
+ vx_proc_open, vx_proc_close, 0, vx_detach, /* vx_attach */
+ vx_resume, vx_wait,
+ vx_read_register, vx_write_register,
+ vx_prepare_to_store,
+ vx_xfer_memory, vx_run_files_info,
+ vx_insert_breakpoint, vx_remove_breakpoint,
+ 0, 0, 0, 0, 0, /* terminal stuff */
+ vx_kill,
+ vx_load_command,
+ vx_lookup_symbol,
+ 0, vx_mourn_inferior,
+ 0, /* can_run */
+ 0, /* notice_signals */
+ 0, /* thread_alive */
+ 0, /* to_stop */
+ process_stratum, 0, /* next */
+ 0, /* all_mem--off to avoid spurious msg in "i files" */
+ 1, 1, 1, 1, /* mem, stack, regs, exec */
+ 0, 0, /* Section pointers */
+ OPS_MAGIC, /* Always the last thing */
};
/* ==> Remember when reading at end of file, there are two "ops" structs here. */
\f
void
_initialize_vx ()
{
+ add_show_from_set
+ (add_set_cmd ("vxworks-timeout", class_support, var_uinteger,
+ (char *) &rpcTimeout.tv_sec,
+ "Set seconds to wait for rpc calls to return.\n\
+Set the number of seconds to wait for rpc calls to return.", &setlist),
+ &showlist);
+
add_target (&vx_ops);
add_target (&vx_run_ops);
}
projects / deliverable / binutils-gdb.git / blobdiff